ES470453A1 - Speed setting and control system for universal motors - Google Patents
Speed setting and control system for universal motorsInfo
- Publication number
- ES470453A1 ES470453A1 ES470453A ES470453A ES470453A1 ES 470453 A1 ES470453 A1 ES 470453A1 ES 470453 A ES470453 A ES 470453A ES 470453 A ES470453 A ES 470453A ES 470453 A1 ES470453 A1 ES 470453A1
- Authority
- ES
- Spain
- Prior art keywords
- speed control
- capacitor
- motor
- half wave
- control circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02P—CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORS OR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
- H02P25/00—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details
- H02P25/02—Arrangements or methods for the control of AC motors characterised by the kind of AC motor or by structural details characterised by the kind of motor
- H02P25/10—Commutator motors, e.g. repulsion motors
- H02P25/14—Universal motors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Control Of Ac Motors In General (AREA)
- Control Of Direct Current Motors (AREA)
- Control Of Electrical Variables (AREA)
- Control Of Electric Motors In General (AREA)
- Electrophonic Musical Instruments (AREA)
Abstract
A universal motor is energized by a speed setting circuit during one half wave and a speed control circuit during the next half wave of each cycle of an AC supply. The speed setting and speed control circuits each have a separate timing circuit including a capacitor. There is thus no residual charge on the capacitor of the speed setting circuit remaining from the operation of the speed control circuit during the preceding half wave. The residual charge prevented the setting of low motor speeds in the known systems. The speed control circuit includes a storage capacitor transformer coupled to the motor so that its initial charge corresponds to the current through the motor during the preceding half wave. The charge is transferred to a second capacitor. When the voltage across the second capacitor reaches a predetermined threshold valve, a switch in the speed control circuit becomes conductive and current flows through the motor.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE2724815A DE2724815C2 (en) | 1977-06-02 | 1977-06-02 | Circuit for controlling and stabilizing the speed of a universal motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES470453A1 true ES470453A1 (en) | 1979-02-01 |
Family
ID=6010457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES470453A Expired ES470453A1 (en) | 1977-06-02 | 1978-06-02 | Speed setting and control system for universal motors |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US4158796A (en) |
| JP (1) | JPS541818A (en) |
| CH (1) | CH629049A5 (en) |
| DE (1) | DE2724815C2 (en) |
| ES (1) | ES470453A1 (en) |
| FR (1) | FR2393462B1 (en) |
| GB (1) | GB1590258A (en) |
| IT (1) | IT1095835B (en) |
| NL (1) | NL7805994A (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2916998A1 (en) * | 1979-04-26 | 1980-11-06 | Bosch Gmbh Robert | SPEED CONTROLLER FOR A UNIVERSAL MOTOR OPERATED ON AN AC VOLTAGE NETWORK |
| US4317176A (en) * | 1980-03-24 | 1982-02-23 | Black & Decker Inc. | Microcomputer controlled power tool |
| EP0217201B1 (en) * | 1985-09-13 | 1992-03-25 | Stein & Co. GmbH | Electronic circuit for floor cleaning apparatus with an electric motor driven brush device |
| US5512810A (en) * | 1994-05-27 | 1996-04-30 | Eaton Corporation | Variable speed control for a hand-held electric power tool |
| FR2745447B1 (en) * | 1996-02-27 | 1998-05-15 | Sgs Thomson Microelectronics | STOP / START CONTROL OF A TWO-WAY MOTOR |
| CN1065992C (en) * | 1996-08-02 | 2001-05-16 | 欧姆龙公司 | Load control device |
| DE19706909A1 (en) * | 1997-02-20 | 1998-08-27 | Miele & Cie | Process for increasing the performance of a vacuum cleaner |
| FR2767427B1 (en) * | 1997-08-14 | 2000-04-28 | Moulinex Sa | METHOD AND SYSTEM FOR VARIATION AND REGULATION OF SPEED OF AN ENGINE |
| WO2020151006A1 (en) * | 2019-01-25 | 2020-07-30 | 深圳和而泰智能控制股份有限公司 | Rotational speed control device for motor, motor, and food processing apparatus |
Family Cites Families (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3399333A (en) * | 1966-01-03 | 1968-08-27 | Gen Motors Corp | Speed control circuit for single phase alternating current induction motors |
| CH443457A (en) * | 1966-01-27 | 1967-09-15 | Heberlein & Co Ag | Method and arrangement for changing the voltage supplied to a consumer with two-way phase control |
| US3588647A (en) * | 1968-04-01 | 1971-06-28 | Electronic Controls Corp | Ac power control circuits for reactive power loads |
| CH485273A (en) * | 1968-12-20 | 1970-01-31 | Sturm Werner | Electric control circuit for an inductive load |
| CH490759A (en) * | 1969-06-13 | 1970-05-15 | Landis & Gyr Ag | Electric speed control device for an alternating current asynchronous motor |
| DE2159308A1 (en) * | 1971-11-30 | 1973-06-07 | Standard Elektrik Lorenz Ag | CIRCUIT ARRANGEMENT FOR THE SPEED CONTROL OF ELECTRIC MOTORS |
| DE2229694A1 (en) * | 1972-06-19 | 1974-01-17 | Bosch Gmbh Robert | SPEED CONTROLLER FOR AN ELECTRIC TOOL |
| US3818298A (en) * | 1973-02-27 | 1974-06-18 | Malte Manson Ab | Series a.c. commutator motor with stabilized speed |
| DE2312127C3 (en) * | 1973-03-10 | 1979-09-27 | Robert Bosch Gmbh, 7000 Stuttgart | Electric speed control device for a single-phase series commutator motor |
| DE2407601C2 (en) * | 1974-02-16 | 1980-04-17 | Robert Bosch Gmbh, 7000 Stuttgart | Control device for lowering the speed of an AC-fed series motor in idle mode |
| US4039913A (en) * | 1976-02-26 | 1977-08-02 | Battelle Development Corporation | Universal electric motor speed control |
| FR2352434A1 (en) * | 1976-05-18 | 1977-12-16 | Peugeot Aciers Et Outillage | SPEED DRIVE FOR UNIVERSAL ELECTRIC MOTOR |
| DE2702142C3 (en) * | 1977-01-20 | 1979-08-02 | Robert Bosch Gmbh, 7000 Stuttgart | Arrangement for controlling the speed of a universal motor |
-
1977
- 1977-06-02 DE DE2724815A patent/DE2724815C2/en not_active Expired
-
1978
- 1978-04-13 FR FR7810950A patent/FR2393462B1/en not_active Expired
- 1978-05-10 CH CH506378A patent/CH629049A5/en not_active IP Right Cessation
- 1978-05-24 US US05/908,985 patent/US4158796A/en not_active Expired - Lifetime
- 1978-05-26 IT IT23859/78A patent/IT1095835B/en active
- 1978-05-30 GB GB24063/78A patent/GB1590258A/en not_active Expired
- 1978-05-31 JP JP6562178A patent/JPS541818A/en active Pending
- 1978-06-01 NL NL7805994A patent/NL7805994A/en not_active Application Discontinuation
- 1978-06-02 ES ES470453A patent/ES470453A1/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL7805994A (en) | 1978-12-05 |
| GB1590258A (en) | 1981-05-28 |
| US4158796A (en) | 1979-06-19 |
| FR2393462B1 (en) | 1985-10-18 |
| IT1095835B (en) | 1985-08-17 |
| IT7823859A0 (en) | 1978-05-26 |
| JPS541818A (en) | 1979-01-09 |
| CH629049A5 (en) | 1982-03-31 |
| DE2724815C2 (en) | 1981-10-08 |
| FR2393462A1 (en) | 1978-12-29 |
| DE2724815A1 (en) | 1978-12-14 |
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